Russia's Lavrov cancels Serbia trip after countries close airspace

Russian Foreign Minister Sergei Lavrov attends a joint press conference with International Committee of the Red Cross (ICRC) President following their talks in Moscow on March 24, 2022.

What you need to know:

Lavrov had been to due to hold talks with top officials in Belgrade, one of Moscow's few remaining allies in Europe since the launch of its military offensive in Ukraine earlier this year.